# list1 = ['asdsa','dfsaf', 1, 2, 1, 25, 36, 1]
# print(list1[1][1])
# print(list1[::2])
#
# print(list1.index('dfsaf'))
#
# print(list1.count(1))
#
# list1.append('dfasffdaf')
# print(list1)
# list1.pop(2)
# print(list1)

# list2 = [['abc', 178.9, 192],['chx', 50,374.8]]
# print(list2)
# list2[0][1] = 58.6
# print(list2)

list3 = ['a','b','c','d','e','f','g','h','i','j']
print(list3)
print(list3[::-1])
print(list3)
list3.reverse()
print(list3)
list4 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
list4.sort(reverse=True)
print(list4)
tuple1 = (1,)
print(tuple1)
a = 10
b = 20
a, b = b, a
print(a, b)